I bought one of these.
http://classicdash.com/product/1970-76-duster-6-gauge-panel-with-auto-meter-gauges/
http://classicdash.com/product/1970-76-duster-6-gauge-panel-with-auto-meter-gauges/
snowmobiler ...you going for an electronic speedo ?
....
Aaaaand he's back out of business (again). He made an announcement a few months back.